WO2011085296A2 - Outil orientable rotatif employant une connexion synchronisée - Google Patents

Outil orientable rotatif employant une connexion synchronisée Download PDF

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Publication number
WO2011085296A2
WO2011085296A2 PCT/US2011/020649 US2011020649W WO2011085296A2 WO 2011085296 A2 WO2011085296 A2 WO 2011085296A2 US 2011020649 W US2011020649 W US 2011020649W WO 2011085296 A2 WO2011085296 A2 WO 2011085296A2
Authority
WO
WIPO (PCT)
Prior art keywords
electronics
module
hydraulics
steering tool
threaded end
Prior art date
Application number
PCT/US2011/020649
Other languages
English (en)
Other versions
WO2011085296A3 (fr
Inventor
Neelesh Deolalikar
Pralay Das
Original Assignee
Smith International, Inc.
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by Smith International, Inc. filed Critical Smith International, Inc.
Priority to CN201180005659.0A priority Critical patent/CN102713128B/zh
Priority to GB1211868.3A priority patent/GB2489624B/en
Priority to MX2012008004A priority patent/MX2012008004A/es
Priority to CA2786430A priority patent/CA2786430C/fr
Priority to RU2012133965/03A priority patent/RU2586353C2/ru
Publication of WO2011085296A2 publication Critical patent/WO2011085296A2/fr
Publication of WO2011085296A3 publication Critical patent/WO2011085296A3/fr

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Classifications

    • E—FIXED CONSTRUCTIONS
    • E21—EARTH DRILLING; MINING
    • E21B—EARTH DRILLING, e.g. DEEP DRILLING; OBTAINING OIL, GAS, WATER, SOLUBLE OR MELTABLE MATERIALS OR A SLURRY OF MINERALS FROM WELLS
    • E21B7/00—Special methods or apparatus for drilling
    • E21B7/04—Directional drilling
    • E21B7/06—Deflecting the direction of boreholes

Definitions

  • the present invention relates generally to downhole steering tools. More particularly, the invention relates to a rotary steerable tool including an electronics housing physically and electrically connected to a blade housing via a timed connection.
  • Deviated boreholes are often drilled using downhole steering tools, such as two- dimensional and three-dimensional rotary steerable tools.
  • Certain rotary steerable tools make use of a plurality of independently operable blades that are disposed to extend radially outward from a blade housing into contact with the borehole wall.
  • the direction of drilling may be controlled, for example, by controlling the magnitude and direction of the force on the blades or the magnitude and direction of the displacement applied to the borehole wall.
  • the blade housing is typically deployed about a rotatable shaft, which is coupled to the drill string and disposed to transfer weight and torque from the surface (or from a mud motor) through the steering tool to the drill bit assembly.
  • Rotary steerable blades are commonly actuated via electronically controlled hydraulic mechanisms.
  • U.S. Patents 5, 168,941 and 6,609,579 to Krueger et al disclose rotary steerable tool deployments in which the direction of drilling is controlled by controlling the magnitude and direction of a side (lateral) force applied to the drill bit. The amount of force on each blade is controlled by controlling a hydraulic pressure at the blade, which is in turn controlled by proportional hydraulics or by switching to the maximum pressure with a controlled duty cycle.
  • each steering blade is independently controlled by a corresponding hydraulic piston pump.
  • each of the piston pumps is operated continuously via rotation of a drive shaft.
  • a control valve positioned between each piston pump and its corresponding blade controls the flow of hydraulic fluid from the pump to the blade.
  • U.S. Patent 5,603,386 to Webster discloses another example of a rotary steerable tool employing electronic control of hydraulic blade actuation.
  • Webster discloses a mechanism in which the direction of drilling is controlled via controlling the radial position of the blades.
  • a hydraulic mechanism is disclosed in which all three blades are controlled via a single pump and pressure reservoir and a plurality of valves. In particular, each blade is controlled by three check valves. The nine check valves are in turn controlled by eight solenoid controlled pilot valves.
  • Commonly assigned U.S. Patent 7,204,325 to Song et al employs hydraulic actuation to extend the blades and a spring biased mechanism to retract the blades. Spring biased retraction of the blades advantageously reduces the number of valves required to control the blades, however, a significant number of controllable components are still required.
  • the above-described prior art steering tools employ complex electronic circuitry in order to control the hydraulic actuation of the blades.
  • This electronic circuitry is deployed in a common housing with the hydraulic control mechanism and the blades. While such tool deployments are known to be commercially serviceable, there is room for further improvement. For example, deployment of the electronic circuitry and the hydraulic components in a common housing tends to complicate tool assembly procedures (especially in small diameter "slim" tools). Moreover, disassembly of the entire tool is commonly required when problems are identified during assembly or testing of the tool. Such disassembly and the subsequent reassembly are time consuming and expensive. Owing to the demand for smaller diameter and less expensive rotary steerable tools, there is a need for further improvement.
  • the present invention addresses the need for improved steering tools.
  • Aspects of the invention include a rotary steerable tool including first and second hydraulic and electronics modules deployed on a shaft.
  • the hydraulics module includes a plurality of hydraulically actuated blades.
  • the electronics module includes electronic circuitry configured to control the blade actuation.
  • the hydraulics and electronics modules are physically and electrically connected to one another via a timed connection.
  • Exemplary embodiments of the present invention may advantageously provide several technical advantages.
  • the present invention makes use of hydraulics and electronics modules that are configured as stand-alone assemblies. As such, these modules may be essentially fully assembled and tested independent of one another prior to the assembly of the final steering tool.
  • This feature of the invention advantageously simplifies the assembly and testing protocol of the hydraulics and electronics modules and therefore tends to improve tool reliability and reduce fabrication costs.
  • This feature of the invention also tends to improve the serviceability of the tool in that a failed module (or simply a module needing service) may be easily removed from the tool and replaced and/or repaired.
  • the present invention includes a downhole steering tool.
  • the steering tool includes an electronics module physically and electrically connected to a hydraulics module via a timed connection.
  • the electronics module and the hydraulics module are deployed about and configured to rotate with respect to a shaft.
  • the hydraulic module includes a plurality of blades deployed on a blade housing, with the blades being disposed to extend and retract radially outward from and inward towards the housing.
  • the electronics housing includes a controller configured to control said extension and retraction of the blades.
  • the timed connection includes a first threaded end configured to be threadably connected with a second threaded end, the first threaded end including at least first and second asymmetrically spaced grooves formed therein, the second threaded end including corresponding first and second asymmetrically spaced slots formed therein.
  • the timed connection further includes a timing ring having a predetermined axial dimension such that the first and second grooves and the corresponding first and second slots become circumferentially aligned when the first and second threaded ends are threaded together to a make-up torque within a predetermined range.
  • the present invention includes a downhole steering tool.
  • the steering tool includes an electronics module physically and electrically connected to a hydraulics module, the electronics module and the hydraulics module being deployed about and configured to rotate with respect to a shaft.
  • the hydraulic module includes a plurality of blades deployed on a blade housing, the blades disposed to extend and retract radially outward from and inward towards the housing.
  • the hydraulic module further includes a first threaded end having a plurality of asymmetrically spaced grooves formed therein.
  • the electronics module includes a controller configured to control said extension and retraction of the blades, the electronics module further including a second threaded end configured to be threadably connected with the first threaded end.
  • the second threaded end includes a plurality of asymmetrically spaced slots formed therein.
  • a timing ring is deployed on one of the hydraulics and electronics modules.
  • the timing ring has a predetermined axial dimension such that corresponding ones of the grooves and slots become circumferentially aligned with one another when the first and second ends are threaded together to a makeup torque in a predetermined range.
  • the present invention includes a downhole steering tool.
  • the steering tool includes an electronics module physically and electrically connected to a hydraulics module.
  • the electronics module and the hydraulics module are deployed about and configured to rotate with respect to a shaft.
  • the hydraulic module includes a plurality of blades deployed on a blade housing, the blades disposed to extend and retract radially outward from and inward towards the housing.
  • the blade housing includes a first threaded end having a plurality of asymmetrically spaced grooves formed therein.
  • a hydraulics sleeve is deployed about at least a portion of the blade housing.
  • the electronics module includes a controller configured to control said extension and retraction of the blades.
  • the electronics module further includes a second threaded end formed on an electronics housing and configured to be threadably connected with the first threaded end.
  • the second threaded end includes a plurality of asymmetrically spaced slots formed therein.
  • An electronics sleeve is deployed about at least a portion of the electronics housing.
  • a timing ring is deployed about the blade housing and axially between the electronics sleeve and the hydraulics sleeve.
  • the timing ring has a predetermined axial dimension such that corresponding ones of the grooves and slots become circumferentially aligned with one another when the first and second ends are threaded together to a makeup torque in a predetermined range.
  • FIGURE 1 depicts a drilling rig on which exemplary embodiments of the present invention may be deployed.
  • FIGURE 2 depicts a perspective view of one exemplary embodiment of the steering tool shown on FIGURE 1.
  • FIGURES 3 A and 3B depict a portion of the steering tool shown on FIGURE 2 with and without a hatch cover.
  • FIGURE 4 depicts a longitudinal cross section of a portion of the steering tool embodiment shown on FIGURE 2.
  • FIGURE 5 depicts a circular cross section of the steering tool embodiment shown on FIGURE 4.
  • FIGURE 6 depicts a longitudinal cross section of the pocket shown on FIGURE 4.
  • FIGURE 7 depicts a partially exploded view of a portion of the steering tool embodiment depicted on FIGURE 2.
  • FIGURES 1 through 7 it will be understood that features or aspects of the embodiments illustrated may be shown from various views. Where such features or aspects are common to particular views, they are labeled using the same reference numeral. Thus, a feature or aspect labeled with a particular reference numeral on one view in FIGURES 1 through 7 may be described herein with respect to that reference numeral shown on other views.
  • FIGURE 1 illustrates a drilling rig 10 suitable for the deployment of exemplary embodiments of the present invention.
  • a semisubmersible drilling platform 12 is positioned over an oil or gas formation (not shown) disposed below the sea floor 16.
  • a subsea conduit 18 extends from deck 20 of platform 12 to a wellhead installation 22.
  • the platform may include a derrick and a hoisting apparatus for raising and lowering the drill string 30, which, as shown, extends into borehole 40 and includes a drill bit 32 and a downhole steering tool 100 (such as a three-dimensional rotary steerable tool).
  • steering tool 100 includes first and second hydraulics and electronics modules 110 and 160 (FIGURE 2).
  • a plurality of blades 150 are deployed on the hydraulics module 110 and are disposed to extend radially outward from the tool 100 into contact with the borehole wall.
  • the extension of the blades 150 into contact with the borehole wall is intended to eccenter the tool in the borehole, thereby changing an angle of approach of the drill bit 32 (which in turn changes the direction of drilling).
  • the electronics module 160 is configured to control hydraulic actuation (extension and retraction) of the blades 150 during drilling.
  • the hydraulics and electronics modules 110 and 160 are physically and electrically connected to one another via a timed connection.
  • the drill string 30 may also include various electronic devices, e.g., including a telemetry system, additional sensors for sensing downhole characteristics of the borehole and the surrounding formation, and microcontrollers disposed to be in electronic communication with the electronics module 160.
  • various electronic devices e.g., including a telemetry system, additional sensors for sensing downhole characteristics of the borehole and the surrounding formation, and microcontrollers disposed to be in electronic communication with the electronics module 160.
  • the invention is not limited in regards to specific types or makes of electrical and/or electronic devices.
  • steering tool 100 is substantially cylindrical and includes threaded ends 102 and 104 (threads not shown) for connecting with other bottom hole assembly (BHA) components (e.g., connecting with the drill bit at end 104 and upper BHA components at end 102).
  • BHA bottom hole assembly
  • the steering tool 100 further includes distinct hydraulics and electronics modules 110 and 160 that are deployed about, and configured to rotate substantially freely with respect to a shaft 105 (FIGURE 4). These modules 110 and 160 are physically and electrically connected to one another via a timed connection as depicted generally at 250.
  • the hydraulics module includes at least one blade 150 deployed, for example, in a recess (not shown) in a blade housing.
  • Preferred embodiments of the invention include three blades 150 deployed at equal angular intervals about the circumference of the blade housing 110, although the invention is expressly not limited in this regard.
  • the hydraulics and electronics modules 110 and 160 are advantageously configured as stand-alone assemblies (as is described in more detail below with respect to FIGURE 7).
  • stand-alone it is meant that each of these modules 110 and 160 may be essentially fully assembled and tested independent of one another prior to being incorporated into the steering tool 100.
  • This feature of the invention advantageously simplifies the assembly and testing protocol of the hydraulics and electronics modules 110 and 160 and therefore tends to improve tool reliability and reduce fabrication costs.
  • This feature of the invention also tends to improve the serviceability of the tool in that a failed module (or simply a module needing service) may be easily removed from the tool and replaced and/or repaired.
  • the hydraulics module 110 further includes hydraulic circuitry (e.g., including pumps, valves, pistons, sensors, and the like) configured to actuate the extension and retraction of the blades 150.
  • the electronics module 160 is configured to measure and control the direction of drilling and therefore includes electronic circuitry configured to control the hydraulic actuation of the extension and retraction of the blades 150.
  • These modules 110 and 160 may include substantially any hydraulic and electronic devices known to those of skill in the art, for example, as disclosed in U.S. Patent 5,603,386 to Webster, U.S. Patent 6,427,783 to Krueger et al, and commonly assigned U.S. Patent 7,464,770 to Jones et al.
  • one or more of the blades 150 may be extended into contact with the borehole wall.
  • the steering tool 100 may be moved away from the center of the borehole by this operation, thereby altering the drilling path. It will be appreciated that the tool 100 may also be moved back towards the borehole axis if it is already eccentered.
  • the rotation rate of the housing is desirably less than about 0.1 rpm during drilling, although the invention is not limited in this regard.
  • the tool 100 is constructed so that the hydraulics and electronics modules 110 and 160 may remain substantially rotationally stationary with respect to the borehole during directional drilling operations. These modules 110 and 160 are therefore constructed in a rotationally non- fixed (or floating) fashion with respect to the shaft 105 (FIGURE 4).
  • the shaft 105 is physically connected with the drill string and is disposed to transfer both torque (rotary power) and weight to the bit.
  • the above-described automatic control and manipulation of the blades 150 is known to require a complex system of electronic circuitry, typically including one or more microprocessors, electronic memory, firmware instructions for control of the tool, and various electronic sensors.
  • This circuitry is typically configured to control the operation of various controllable hydraulic components in the hydraulics module 110, for example, including solenoid-actuated valves and an electric pump.
  • the circuitry is also typically disposed to be in electronic communication with various sensors that are deployed in the hydraulics module 110, for example, including pressure sensors and linear position sensors deployed at each blade 150.
  • Such electronic communication and control commonly requires a large number of electrical conductors (wires) to be routed between the hydraulics and electronics modules 110 and 160 (e.g., from the electronics module to the hydraulics module).
  • the invention advantageously enables substantially any number of wires to be routed between the modules (constrained only physical space within the tool). For example, in one exemplary embodiment of the invention, more than 30 electrical conductors are routed from electronics module 160 through the timed connection 250 to various components in the hydraulics module 110.
  • FIGURES 3 A and 3B a portion of steering tool 100 is depicted.
  • the tool 100 includes a timed connection 250 which physically and electrically connects the hydraulics and electronics modules 110 and 160.
  • FIGURE 3 A depicts a hatch cover 195 that is configured to sealingly engage an opening in the electronics module 160.
  • the electronics module 160 includes an outer sleeve 175 that is deployed about an electronics housing 170.
  • the hatch cover 195 is deployed in a corresponding opening in the sleeve 175 and may therefore function (in part) as an anti-rotation device that prevents the sleeve 175 from rotating with respect to the electronics housing 170.
  • a timing ring 260 is deployed axially between the electronics sleeve 175 and a hydraulics sleeve 125 (which is deployed about at least a portion of the blade housing 120).
  • FIGURE 3B depicts a partially exploded view in which the hatch cover 195 is removed from the electronics housing 170.
  • FIGURE 3B reveals a slot 242 formed in a box end of the electronics housing 170.
  • a corresponding groove 244 is formed in an outer surface of a pin end of the blade housing 120 (FIGURE 4).
  • the slot 242 and the corresponding groove 244 are circumferentially aligned within one another. This circumferential alignment forms a pocket 240 (FIGURES 4 and 5).
  • Removal of the hatch cover 195 (as depicted on FIGURE 3B) enables an electrical connection to be made between a first wire harness (FIGURE 6) that originates in the electronics module 160 and a second wire harness that originates in the hydraulics module 110.
  • the connected harnesses are deployed in the pocket 240. Redeployment of the hatch cover 195 onto the electronics housing 170 provides a pressure tight seal which is intended to prevent ingress of drilling fluid into the pocket.
  • FIGURES 4 and 5 depict a portion of steering tool 100 in longitudinal (FIGURE 4) and circular (FIGURE 5) cross section.
  • the hydraulics and electronics modules 110 and 160 are deployed about shaft 105.
  • the shaft 105 includes a through bore 107 for the flow of drilling fluid to the bit.
  • the hydraulics module 110 includes a hydraulics sleeve 125 deployed about at least a portion of the blade housing 120.
  • the aforementioned hydraulic components may be deployed in one or more cavities 135 formed in the housing 120 and located radially between the sleeve 125 and the housing 120.
  • the electronics module 160 includes an electronics sleeve 175 deployed about at least a portion of the electronics housing 170.
  • the aforementioned electronic circuitry may be deployed in one or more cavities 185 formed in the housing 170 and located radially between the sleeve 175 and housing 170. Radial bearings 190 may be deployed, for example, between the electronics housing 170 and the shaft 105.
  • the blade housing 120 includes a pin end 122 that is threadably connected at 280 to the box end 172 of electronics housing 170.
  • a plurality of circumferentially spaced grooves 244 are formed in an outer surface of the pin end 122.
  • Box end 172 includes a corresponding plurality of circumferentially spaced slots 242 formed therein.
  • These grooves 244 and slots 242 are asymmetrically spaced about the circumference of the tool.
  • the grooves 244 may be circumferentially spaced at unequal angular intervals about the circumference of the blade housing 120.
  • the slots 242 may be circumferentially spaced at the same unequal angular intervals about the circumference of the electronics housing.
  • the grooves and slots may also be spaced at equal angular intervals if they are axially offset from one another (e.g. a first groove slot pair located at a first axial position and a second groove slot pair located at a second (different) axial position).
  • a first groove slot pair located at a first axial position
  • a second groove slot pair located at a second (different) axial position.
  • three corresponding grooves and slots are axially aligned and angularly spaced at 115, 115, and 130 degrees (the invention is of course not limited to this particular example).
  • corresponding grooves 244 and slots 242 When connecting the hydraulics and electronics modules 110 and 160, corresponding grooves 244 and slots 242 must be rotationally aligned (in order to make the necessary electrical connections).
  • the asymmetric spacing of the grooves 244 and slots 242 ensures that there is only a single relative rotational position between the housings 120 and 170 at which the corresponding grooves 244 and slots 242 can be properly aligned. This in turn ensures a one-to- one correspondence of the conductors in the electronics module 160 with the conductors in the hydraulics module 110.
  • a timing ring 260 is deployed about the blade housing 120 and is located axially between the electronics sleeve 175 and the hydraulics sleeve 125.
  • the timing ring has a predetermined axial dimension such that each of the grooves 244 and their corresponding slots 242 become aligned with one another when a predetermined make-up torque has been applied to the threaded connection during the assembly of the tool. This tool assembly is described in more detail below with respect to FIGURE 7.
  • each of the modules 110 and 160 routing of the electrical connectors from each of the modules 110 and 160 to the timed connection 250 is now briefly described.
  • multiple electrical conductors e.g., wires
  • a number of these conductors are typically bundled to form a harness (e.g., 8 or 12 wires per harness).
  • the exemplary embodiment depicted makes use of three harnesses. Each of these harnesses may be routed through an annular gap located between the electronics sleeve 175 and the electronics housing 170 to a corresponding longitudinal bore 174 in the housing 170.
  • the harnesses extend through the corresponding bores 174 to corresponding recesses 178 formed between an outer surface of the electronics housing 170 and the hatch cover 195 (the recesses may be formed in either or both of the outer surface of the housing 170 and the inner surface of the hatch cover 195).
  • the harnesses are then routed to the corresponding pockets 240 (e.g., pockets 240A, 240B, and 240C depicted on FIGURE 5).
  • FIG. 1 depicts electronics harness 292 connected with hydraulics harness 294. The harnesses are electrically connected with one another and deployed in the pocket (as depicted at 295).
  • the hydraulics and electronics modules 110 and 160 are configured as stand-alone assemblies that may be essentially fully assembled and tested independent of one another prior to being incorporated into the steering tool 100. These modules may then be deployed on the shaft 105 as depicted on FIGURE 7.
  • the steering tool is assembled from top to bottom.
  • the fully assembled electronics module 160 is slidably received on the shaft 105.
  • the fully assembled hydraulics module 110, including the blades 150 and timing ring 260 may also be slidably received on the shaft 105 such that the pin end 122 of the blade housing 120 engages the box end 172 of the electronics housing 170.
  • the hydraulics and electronics modules 110 and 160 are rotated with respect to one another such that threads 282 formed on the outer surface of pin end 122 engage threads 284 formed on the inner surface of the box end 172.
  • the timing ring is fabricated with a predetermined axial dimension such that the grooves 244 in pin end 122 become circumferentially aligned with the corresponding slots 242 in the box end 172 when the predetermined make-up torque (or a make-up torque in a predetermined range) has been applied.
  • the steering tool 100 may include a custom-sized timing ring. Proper sizing of the timing ring 260 may be achieved, for example as follows.
  • the hydraulics module 110 may be fitted with a standard sized timing ring and then threadably connected to the electronics module 160 as described above.
  • the angular mismatch between the corresponding grooves 244 and slots 242 is measured (e.g., via scribe marks on external surfaces of the sleeves). This angular mismatch is then used to determine (e.g., via a look up table) a required reduction in the axial dimension of the timing ring 260.
  • the timing ring may then be faced off (machined) so as to reduce its axial dimension the prescribed amount.
  • the steering tool 100 is then reassembled as described above with the custom-sized timing ring 260 to establish a physical connection between the hydraulics and electronics modules 1 10 and 160.
  • An electrical connection may be established via connecting the aforementioned wire harnesses in pockets 240 (as described above with respect to FIGURES 4 and 5).
  • the hatch covers 195 may then be deployed in place as described above with respect to FIGURES 3A and 3B.
  • the hydraulics module 110 includes a reservoir of hydraulic oil that this is modulated to the hydrostatic pressure of the borehole via an equalizer piston (the reservoir and piston are not shown).
  • Drilling fluid in the borehole annulus is in fluid communication with the equalizer piston via the perforated timing ring 260 and one or more bores 133 (FIGURES 4 and 5).
  • the timing ring 260 further functions as a filter screen through which the drilling fluid may enter the hydraulics module 110.

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  • Geology (AREA)
  • Life Sciences & Earth Sciences (AREA)
  • Engineering & Computer Science (AREA)
  • Mining & Mineral Resources (AREA)
  • Environmental & Geological Engineering (AREA)
  • Fluid Mechanics (AREA)
  • Physics & Mathematics (AREA)
  • General Life Sciences & Earth Sciences (AREA)
  • Geochemistry & Mineralogy (AREA)
  • Earth Drilling (AREA)
  • Power Steering Mechanism (AREA)
  • Switch Cases, Indication, And Locking (AREA)
  • Steering Control In Accordance With Driving Conditions (AREA)
  • Consolidation Of Soil By Introduction Of Solidifying Substances Into Soil (AREA)

Abstract

La présente invention concerne un outil d'orientation pour fond de trou (100) qui comprend des modules hydraulique et électronique (110, 160) distincts déployés sur un arbre (105). Le module hydraulique (110) comprend une pluralité de lames hydrauliques (150). Le module électronique (160) comprend des circuits électroniques conçus pour commander l'actionnement des lames. Les modules hydraulique et électronique (110, 160) sont raccordés physiquement et électriquement l'un à l'autre par le biais d'une connexion synchronisée (250).
PCT/US2011/020649 2010-01-08 2011-01-10 Outil orientable rotatif employant une connexion synchronisée WO2011085296A2 (fr)

Priority Applications (5)

Application Number Priority Date Filing Date Title
CN201180005659.0A CN102713128B (zh) 2010-01-08 2011-01-10 采用定时连接区域的旋转式可转向工具
GB1211868.3A GB2489624B (en) 2010-01-08 2011-01-10 Rotary steerable tool employing a timed connection
MX2012008004A MX2012008004A (es) 2010-01-08 2011-01-10 Herramienta direccional rotatoria que emplea una conexion sincronizada.
CA2786430A CA2786430C (fr) 2010-01-08 2011-01-10 Outil orientable rotatif employant une connexion synchronisee
RU2012133965/03A RU2586353C2 (ru) 2010-01-08 2011-01-10 Скважинный отклоняющий инструмент, использующий синхронизированное соединение (варианты)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
US12/684,217 US8550186B2 (en) 2010-01-08 2010-01-08 Rotary steerable tool employing a timed connection
US12/684,217 2010-01-08

Publications (2)

Publication Number Publication Date
WO2011085296A2 true WO2011085296A2 (fr) 2011-07-14
WO2011085296A3 WO2011085296A3 (fr) 2011-09-09

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US (1) US8550186B2 (fr)
CN (1) CN102713128B (fr)
CA (1) CA2786430C (fr)
GB (1) GB2489624B (fr)
MX (1) MX2012008004A (fr)
RU (1) RU2586353C2 (fr)
WO (1) WO2011085296A2 (fr)

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US10907412B2 (en) 2016-03-31 2021-02-02 Schlumberger Technology Corporation Equipment string communication and steering
US10858934B2 (en) 2018-03-05 2020-12-08 Baker Hughes, A Ge Company, Llc Enclosed module for a downhole system
US11230887B2 (en) 2018-03-05 2022-01-25 Baker Hughes, A Ge Company, Llc Enclosed module for a downhole system
US10829993B1 (en) * 2019-05-02 2020-11-10 Rival Downhole Tools Lc Wear resistant vibration assembly and method
CN112324364B (zh) * 2020-12-08 2022-07-05 临沂金良不锈钢制品有限公司 一种应用于油井的四通套管快装结构

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WO2011085296A3 (fr) 2011-09-09
RU2012133965A (ru) 2014-02-20
MX2012008004A (es) 2012-08-23
GB2489624B (en) 2016-01-20
CA2786430C (fr) 2015-06-23
GB201211868D0 (en) 2012-08-15
CN102713128A (zh) 2012-10-03
CA2786430A1 (fr) 2011-07-14
GB2489624A (en) 2012-10-03
RU2586353C2 (ru) 2016-06-10
US20110168444A1 (en) 2011-07-14
US8550186B2 (en) 2013-10-08
CN102713128B (zh) 2015-01-28

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